Unusual planet pair challenges traditional formation models

7 Mwezi wa tano, 2026

Imeripotiwa na AI

Astronomers have identified a rare planetary system 190 light-years from Earth featuring a hot Jupiter sharing its orbit with a mini-Neptune closer to the star. This configuration was once considered nearly impossible. New observations from the James Webb Space Telescope provide fresh insights into how the planets formed.

The system, centered on the star TOI-1130, was first detected in 2020 using data from NASA's Transiting Exoplanet Survey Satellite. The mini-Neptune completes an orbit every four days while the hot Jupiter takes eight days. Researchers noted that hot Jupiters typically lack nearby companions due to their strong gravitational influence.

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JWST uncovers metal-poor atmosphere on exoplanet TOI-5205 b

Astronomers using the James Webb Space Telescope have detected an unusually metal-poor atmosphere on the Jupiter-sized exoplanet TOI-5205 b, which orbits a small, cool star. The planet's atmospheric metallicity is lower than that of its host star, challenging theories of giant planet formation. The findings come from a study led by researchers at NASA's Goddard Space Flight Center and Carnegie Science.

Rocky planet discovered in outer orbit of LHS 1903 system

14 Mwezi wa pili, 2026 Imeripotiwa na AI

Astronomers have identified a four-planet system around the red dwarf star LHS 1903 where the outermost planet is rocky, defying typical formation patterns. This discovery, led by researchers from McMaster University and the University of Warwick, challenges established theories on how planets develop. Observations from space and ground-based telescopes revealed the unexpected composition of the distant world.

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Six planets to align in rare celestial parade

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James Webb telescope maps Uranus's upper atmosphere in three dimensions

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JWST discovers water ice clouds on Jupiter-like exoplanet

Simulation reveals how Kuiper Belt objects form snowman shapes

Researchers at Michigan State University have developed a computer simulation showing that gravitational collapse can naturally produce double-lobed, snowman-like structures in the outer solar system. These contact binaries make up about 10 percent of planetesimals in the Kuiper Belt beyond Neptune. The findings, published in the Monthly Notices of the Royal Astronomical Society, explain a long-standing puzzle in astronomy.

Astronomers advance Kuiper Belt mapping with new telescopes

14 Mwezi wa pili, 2026 Imeripotiwa na AI

Astronomers are using advanced telescopes to catalog thousands more objects in the Kuiper Belt, a distant ring of ancient solar system debris beyond Neptune. The Vera C. Rubin Observatory's Legacy Survey of Space and Time, which began operating in 2025, will lead this effort, potentially revealing hidden planets and structures. Experts anticipate discoveries that could clarify the early solar system's history.

Jumanne, 5. Mwezi wa tano 2026, 22:30:13